Philips has announced today the Philips Hue Motion Sensor
The Motion sensor is a wireless sensor that requires 2 AAA batteries. The sensor spread is 100 degrees and can be adjusted up to 30 degrees horizontal and 30 degrees vertically. You will be able to add up to 12 sensors per bridge, retail price is going to be $39.95
When the sensor picks up movement it will turn on a scene and after it no longer detects motion it will automatically turn off the lights, it is not known yet how long or if that it also adjustable in the hue application. You can have a different scene come on depending on if it is night or day.
This product will be released in selected markets in October 2016.